Home / 321,234.40-443,303.04-178,003.72

Finding the Fourth Proportional to 321,234.40, 443,303.04 and 178,003.72

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Solution

The fourth proportional to 321,234.40, 443,303.04 and 178,003.72 is: 245,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,234.40 : 443,303.04 = 178,003.72 : x
  2. Step 2: Convert to fraction form
    321,234.40/443,303.04 = 178,003.72/x
  3. Step 3: Cross multiply
    321,234.40x = 443,303.04 × 178,003.72
  4. Step 4: Simplify right side
    321,234.40x = 78,909,590,207.31
  5. Step 5: Solve for x
    x = 78,909,590,207.31/321,234.40
  6. Step 6: Final answer
    x = 245,644.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.